docs: def update_contact(self, contact_id, email=None, name=None):
          """
          Update a current contact
          :param contact_id: contact id
          :param email: user email
          :param name: user name
          """
          params = {}
  
          if email is not None:
              params['email'] = email
  
          if name is not None:
              params['name'] = name
  
          url = self.CONTACTS_ID_URL % contact_id
  
          connection = Connection(self.token)
          connection.set_url(self.production, url)
          connection.add_header('Content-Type', 'application/json')
          connection.add_params(params)
  
          return connection.patch_request()